11-57598250-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBS1BS2

The NM_000062.3(SERPING1):​c.-21T>C variant causes a splice region, 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0418 in 1,544,846 control chromosomes in the GnomAD database, including 1,559 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.031 ( 93 hom., cov: 31)
Exomes 𝑓: 0.043 ( 1466 hom. )

Consequence

SERPING1
NM_000062.3 splice_region, 5_prime_UTR

Scores

2
13
Splicing: ADA: 0.0005334
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 0.247
Variant links:
Genes affected
SERPING1 (HGNC:1228): (serpin family G member 1) This gene encodes a highly glycosylated plasma protein involved in the regulation of the complement cascade. Its encoded protein, C1 inhibitor, inhibits activated C1r and C1s of the first complement component and thus regulates complement activation. It is synthesized in the liver, and its deficiency is associated with hereditary angioneurotic oedema (HANE). Alternative splicing results in multiple transcript variants encoding the same isoform. [provided by RefSeq, May 2020]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0015582442).
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0314 (4774/152100) while in subpopulation NFE AF= 0.0484 (3288/67970). AF 95% confidence interval is 0.047. There are 93 homozygotes in gnomad4. There are 2260 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 93 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SERPING1NM_000062.3 linkuse as main transcriptc.-21T>C splice_region_variant, 5_prime_UTR_variant 2/8 ENST00000278407.9
SERPING1NM_001032295.2 linkuse as main transcriptc.-21T>C 5_prime_UTR_variant 1/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SERPING1ENST00000278407.9 linkuse as main transcriptc.-21T>C splice_region_variant, 5_prime_UTR_variant 2/81 NM_000062.3 P2P05155-1

Frequencies

GnomAD3 genomes
AF:
0.0314
AC:
4776
AN:
151982
Hom.:
93
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00834
Gnomad AMI
AF:
0.0771
Gnomad AMR
AF:
0.0226
Gnomad ASJ
AF:
0.0213
Gnomad EAS
AF:
0.000583
Gnomad SAS
AF:
0.00766
Gnomad FIN
AF:
0.0510
Gnomad MID
AF:
0.0316
Gnomad NFE
AF:
0.0484
Gnomad OTH
AF:
0.0297
GnomAD3 exomes
AF:
0.0291
AC:
4285
AN:
147346
Hom.:
96
AF XY:
0.0292
AC XY:
2312
AN XY:
79186
show subpopulations
Gnomad AFR exome
AF:
0.00763
Gnomad AMR exome
AF:
0.0168
Gnomad ASJ exome
AF:
0.0199
Gnomad EAS exome
AF:
0.0000921
Gnomad SAS exome
AF:
0.00917
Gnomad FIN exome
AF:
0.0498
Gnomad NFE exome
AF:
0.0467
Gnomad OTH exome
AF:
0.0311
GnomAD4 exome
AF:
0.0429
AC:
59761
AN:
1392746
Hom.:
1466
Cov.:
31
AF XY:
0.0419
AC XY:
28767
AN XY:
686004
show subpopulations
Gnomad4 AFR exome
AF:
0.00745
Gnomad4 AMR exome
AF:
0.0176
Gnomad4 ASJ exome
AF:
0.0208
Gnomad4 EAS exome
AF:
0.0000559
Gnomad4 SAS exome
AF:
0.0105
Gnomad4 FIN exome
AF:
0.0537
Gnomad4 NFE exome
AF:
0.0491
Gnomad4 OTH exome
AF:
0.0351
GnomAD4 genome
AF:
0.0314
AC:
4774
AN:
152100
Hom.:
93
Cov.:
31
AF XY:
0.0304
AC XY:
2260
AN XY:
74364
show subpopulations
Gnomad4 AFR
AF:
0.00831
Gnomad4 AMR
AF:
0.0225
Gnomad4 ASJ
AF:
0.0213
Gnomad4 EAS
AF:
0.000584
Gnomad4 SAS
AF:
0.00766
Gnomad4 FIN
AF:
0.0510
Gnomad4 NFE
AF:
0.0484
Gnomad4 OTH
AF:
0.0294
Alfa
AF:
0.0436
Hom.:
192
Bravo
AF:
0.0292
ESP6500AA
AF:
0.00671
AC:
27
ESP6500EA
AF:
0.0329
AC:
264
ExAC
AF:
0.0159
AC:
1662
Asia WGS
AF:
0.00462
AC:
16
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Likely benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, University Medical Center Utrecht-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 13, 2019This variant is associated with the following publications: (PMID: 16470590, 27884173, 29676077, 27116602, 23437219, 18586324, 20804470, 8755917) -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
Hereditary angioedema type 1 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.32
CADD
Benign
14
DANN
Benign
0.96
DEOGEN2
Benign
0.0065
T;T
Eigen
Benign
0.17
Eigen_PC
Benign
-0.13
FATHMM_MKL
Benign
0.70
D
LIST_S2
Benign
0.27
T;T
MetaRNN
Benign
0.0016
T;T
MetaSVM
Benign
-0.60
T
MutationTaster
Benign
1.0
D;D;D;D;N
PROVEAN
Benign
-0.20
N;N
REVEL
Benign
0.15
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Vest4
0.032
ClinPred
0.012
T
GERP RS
-0.41

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00053
dbscSNV1_RF
Benign
0.19
SpliceAI score (max)
0.25
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.25
Position offset: -1

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs28362944; hg19: chr11-57365723; COSMIC: COSV53542368; COSMIC: COSV53542368; API